Thanks for a great reply! I think my (and I don't think I'm alone in this) bias is that when I think of intelligence I tend to think of tasks that the human bra

Thanks for a great reply! I think my (and I don't think I'm alone in this) bias is that when I think of intelligence I tend to think of tasks that the human brain has evolved to perform, like linguistic and visual analysis. It may be argued that these tasks form a small subspace of the "intelligence space", but, boy, is the human brain good at solving these! That doesn't mean that we are optimal; however, for many AI tasks the brain operates on such a vastly different performance level that comparisons with machine AI seem out of place. Even systems like Watson, which were created by many hundreds of man-years, can stump humans in narrow domain tasks. Now, it might be argued that some sort of paradigm shift will occur as machines get more intelligent (e.g. similar to how results from STR and quantum theory were impossible to predict to Newtonian-constrained thinking) and some effects that we cannot predict now will prevail, like the massive increase in intelligence in humans that caused/was caused by the advent of language.